How to Grow Curly Hair: The Complete Guide for Healthy, Lengthening Curls

Contents:

• Understanding Curly Hair Growth: The Science Behind Your Curls
• Why Curly Hair Breaks More Often
• The Foundation: Moisture Is Everything for Growing Curly Hair
• Deep Conditioning: The Non-Negotiable Step
• Leave-In Conditioning and Curl Creams
• Porosity and Your Curls: Why It Matters for Growth
• Identifying Your Hair’s Porosity
• Scalp Health: The Often-Forgotten Factor in Growing Curly Hair
• Shampooing Curly Hair Correctly
• Scalp Treatments and Buildup Removal
• Minimising Breakage: The Practical Steps That Actually Work
• Detangling Without Damage
• Sleeping Techniques for Curl Protection
• Styling Practices That Protect Length
• Comparing Growth Methods: Protein vs. Moisture—Which Do Your Curls Need?
• Nutrition and Internal Health: Growing Curly Hair from Within
• Key Nutrients for Hair Growth
• Hydration Matters Too
• Styling for Length in a Small Space
• Avoiding Tension and Damage
• Trimming: Why You Can’t Skip It
• Environmental Factors: Water Quality and Climate
• Sustainable Curl Care: Eco-Friendly Practices
• Tracking Your Progress: Measuring Real Growth
• Frequently Asked Questions About Growing Curly Hair
• How often should I wash curly hair while growing it?
• Can vitamins or supplements actually help hair grow faster?
• What’s the difference between a trim and a cut for curly hair?
• Is it true that cutting curly hair more often makes it grow faster?
• Can I grow curly hair without using any special products?

Curly hair doesn’t just look good—it requires a specific strategy to grow longer and healthier. Forget everything you’ve been told about generic hair growth. Your curls have unique needs, and getting them right can transform your results in months, not years.

Understanding Curly Hair Growth: The Science Behind Your Curls

Hair grows roughly 15 centimetres per year on average, but curly hair often appears shorter than it actually is. This happens because curls compress as they coil—a strand that measures 25 centimetres when stretched might look only 12 centimetres in its natural state. Understanding this difference matters when you’re tracking progress on how to grow curly hair effectively.

The structure of curly hair is fundamentally different from straight hair. Your hair follicles are curved rather than straight, which means the natural oils from your scalp (sebum) don’t travel down the hair shaft as easily. This leaves curls drier and more prone to breakage. The cuticle layer of each curl is also more exposed, making it vulnerable to environmental damage.

Why Curly Hair Breaks More Often

Breakage is the enemy of length. When your curls break, they don’t actually grow longer—you’re simply maintaining the same length as the broken ends accumulate. The average curly-haired person loses about 5 centimetres annually to breakage if they’re not using protective methods. For growing curly hair successfully, reducing breakage is just as important as encouraging new growth from the roots.

The mechanical stress of curling also weakens hair. Each time your hair forms a curl, the hydrogen bonds that hold your hair’s structure together experience tension. Without proper conditioning, these bonds become brittle and snap more easily. This is why healthy, moisturised curls are softer and more stretchy—they can withstand the compression without breaking.

The Foundation: Moisture Is Everything for Growing Curly Hair

You cannot grow healthy curly hair without addressing moisture. Dry curls are fragile curls, and fragile curls snap off before they reach the length you want. A solid moisture routine should include deep conditioning at least once weekly, using products specifically formulated for curls rather than generic hair treatments.

Deep Conditioning: The Non-Negotiable Step

Invest in a quality deep conditioning treatment. Expect to spend £8 to £18 on a bottle that lasts 6-8 weeks with weekly use. Apply it from mid-shaft to ends, never to your scalp. Leave it on for at least 15 minutes—longer is better. If you have limited space (like a small bathroom), you can apply the mask, then do something else for 20 minutes while it works.

Look for conditioners containing ingredients like shea butter, coconut oil, or glycerin. Avoid silicones (dimethicone, cyclopentasiloxane), which coat the hair temporarily but prevent moisture from actually penetrating the curl. Many budget-friendly brands at Boots or Superdrug contain silicones, so check the ingredient list carefully.

Application matters as much as product selection. Use your fingers to separate your curls and apply conditioner from the inside of each curl outward. This ensures every surface gets treated. Work through systematically, section by section, especially on the ends where damage concentrates. Most people under-condition their curls simply because they don’t take enough time to apply thoroughly.

Leave-In Conditioning and Curl Creams

A leave-in conditioner applied to damp hair creates a barrier that keeps moisture locked in. Apply a 10-pence-sized amount to soaking wet curls, then add a curl cream or gel on top to seal. The curl cream should contain humectants (ingredients that draw moisture from the air into your hair) like honey or aloe vera.

The difference between a leave-in conditioner and a regular rinse-out conditioner is thickness and staying power. Leave-ins are typically lighter and are designed to remain on your hair permanently. They create a protective layer and continue nourishing throughout the day. For growing curly hair, this layer is essential—it shields your curls from friction and environmental stressors.

What the Pros Know: Hairdressers who specialise in curly cuts recommend the “praying hands” method when applying products. Smooth the product down the curl with both hands rather than scrunching it in—this reduces frizz and keeps the curl pattern intact as it dries. Most people waste 30-40% of their product through inefficient application. By using proper technique, you’ll stretch each bottle further and see better results with less product.

Porosity and Your Curls: Why It Matters for Growth

Hair porosity determines how easily moisture enters and exits your curls. High porosity hair absorbs water quickly but can’t retain it—curls feel dry even after moisturising. Low porosity hair resists water penetration, so products sit on the surface. Understanding your porosity helps you choose the right growth strategy for your specific curl type.

Identifying Your Hair’s Porosity

The water glass test gives you a quick answer: place a clean strand of your hair in a glass of room temperature water. If it sinks immediately, you have high porosity. If it floats, you have low porosity. If it suspends in the middle, your porosity is normal or medium.

High porosity curls need lightweight oils like argan or jojoba applied to damp hair. These oils are small enough to penetrate the hair shaft and seal moisture inside. Low porosity curls respond better to heavier butters applied to soaking wet hair while water can still penetrate. The water molecules help push the butter through the cuticle layer. Using the wrong approach wastes money and leaves your curls feeling worse than before.

You might have different porosity levels throughout your hair. Roots are often lower porosity because they’re younger. Mid-lengths are usually medium. Ends become high porosity due to damage and age. This is why many people benefit from using different products on different sections—a lightweight leave-in on roots, medium on mid-lengths, and a heavier sealing oil on ends.

Scalp Health: The Often-Forgotten Factor in Growing Curly Hair

Your curls grow from the scalp. A flaky, irritated scalp produces weaker hair that breaks more easily. Yet most people focus entirely on their curl ends and ignore their scalp.

Shampooing Curly Hair Correctly

Shampooing too often strips away natural oils. Most curly-haired people should shampoo only once every 7-10 days. When you do shampoo, focus the lather on your scalp, not your curls. Massage your scalp with fingertips for 2-3 minutes to stimulate blood flow and remove buildup.

Use a sulfate-free shampoo—sulfates create harsh lather that strips moisture. A good sulfate-free option costs around £6 to £12 and lasts 2-3 months with weekly washing. Brands like SheaMoisture, Kinky-Curly, and Cantu are widely available at Boots or online. Test a few to find the one that leaves your scalp feeling clean but not tight.

Between full shampoos, use co-washing (washing with conditioner only). Saturate your scalp and hair with conditioner, massage gently for 2-3 minutes, then rinse thoroughly. This removes sweat and light buildup without stripping natural oils. Co-washing costs even less than shampooing since you’re using product you already have, making it economical for tight budgets.

Scalp Treatments and Buildup Removal

Product buildup accumulates over time, especially if you use leave-in conditioner and styling creams weekly. This buildup slows hair growth and causes itching. Once monthly, use a clarifying treatment. You can make one at home by mixing equal parts apple cider vinegar and water, or buy a scalp scrub (around £8) designed for textured hair.

A scalp treatment using tea tree oil or peppermint can also stimulate growth. Mix a few drops of essential oil with a carrier oil like coconut, then massage into your scalp for 5 minutes. These oils increase blood circulation, bringing more nutrients to your hair roots. Do this treatment once weekly for best results. Your scalp will feel tingly and refreshed, and you’ll notice stronger hair growing in within 4-6 weeks.

Minimising Breakage: The Practical Steps That Actually Work

Breakage prevention is where growing curly hair accelerates. A single change in how you handle your hair—moving from rough handling to gentle techniques—can increase effective growth length by 40% within 6 months.

Detangling Without Damage

Detangle only when your hair is soaking wet and coated with conditioner. Wet hair is elastic; dry hair snaps. Start from the ends and work upward in sections. Use a wide-tooth comb or your fingers, never a brush. This takes longer—expect 15-20 minutes for shoulder-length curls—but you’ll lose 70% less hair than rushing through with a regular brush.

If you live in a small space, detangle in the shower or over a sink so loose hairs rinse away immediately rather than tangling back into your curls. Collect loose hairs in your hand as you detangle and dispose of them rather than letting them drop throughout your apartment. This prevents the frustration of finding tangled hairs everywhere.

Finger detangling requires patience but produces the gentlest results. Your fingers can feel knots and work through them without the blunt force of a tool. Start with 3-4 fingers and gradually reduce to 2 as you work through tangles. Your curls will feel softer and fluffier after finger detangling compared to comb detangling.

Sleeping Techniques for Curl Protection

Your curls experience constant friction against a cotton pillowcase every night. Cotton absorbs moisture and causes frizz and breakage. Switch to a silk or satin pillowcase (£8-15) or use a silk bonnet (£5-10). Your curls will retain moisture better, wake up with less frizz, and experience less stress overnight.

Alternatively, pineapple your hair before bed: gather curls loosely on top of your head and secure with a silk scrunchie. This keeps them off your pillowcase and maintains the curl pattern overnight. Do not use regular elastic hair bands—they cause breakage and dents. Silk scrunchies or old cloth strips work much better.

Some people benefit from a combination approach: pineapple for the first half of the night, then switch to a bonnet if the pineapple comes loose. Experiment with both methods to see what keeps your curls healthiest and your sleep comfortable.

Styling Practices That Protect Length

Protective styles reduce daily manipulation and breakage. Braids, buns, and twists keep curls tucked away and less exposed to environmental stress. Rotate protective styles every 1-2 weeks to avoid tension alopecia (hair loss from constant pulling). Never sleep in styles pulled tightly—loose is always better.

When creating protective styles, use silk or satin ties instead of elastic. Wet your hair slightly before styling so it’s pliable but not dripping. This allows you to style without snagging or breaking. If you’re braiding, keep the tension light—you should be able to fit a finger comfortably between the braid and your scalp.

Comparing Growth Methods: Protein vs. Moisture—Which Do Your Curls Need?

Many people confuse protein treatments with moisture treatments. They’re not the same, and using the wrong one actually damages your curls.

Moisture treatments hydrate the hair and make curls soft and bouncy. Protein treatments strengthen the hair structure and reduce breakage. You need both, but the ratio matters. Most curly-haired people need a 4:1 ratio of moisture to protein. Too much protein makes curls stiff and brittle; too much moisture makes them limp.

A simple test: after shampooing and conditioning, take a wet strand and stretch it gently. If it stretches significantly before breaking, you need more protein. If it barely stretches and snaps immediately, you’re on the right track. If it stretches but feels mushy, you need more moisture.

Protein treatments (around £8-12) should be used monthly, not weekly. Products like OGX or SheaMoisture’s protein-rich masks work well. Apply for 15-20 minutes, rinse thoroughly, then follow with a moisture treatment to re-balance. Over-proteinating is common and leaves curls feeling dry and straw-like, so be conservative with frequency.

Nutrition and Internal Health: Growing Curly Hair from Within

You can’t grow longer hair if your body lacks the nutrients it needs. Hair is made of protein; your body uses iron, zinc, and B vitamins to build it. Deficiencies in any of these slow growth noticeably.

Key Nutrients for Hair Growth

Protein should make up 25% of your daily intake—include lean meats, eggs, legumes, or tofu in meals. Iron-rich foods like spinach, lentils, and red meat support hair growth; low iron causes shedding. A simple multivitamin supplement costs around £6-10 monthly and covers most bases. Biotin supplements are popular for hair, though evidence is mixed—they’re worth trying for 3 months to assess any difference.

Omega-3 fatty acids reduce inflammation and support scalp health. Include fatty fish like salmon, or take a fish oil supplement. Vitamin C helps your body absorb iron and produce collagen in your hair. Vitamin E protects against oxidative damage. If supplementing feels overwhelming, focus on a good multivitamin plus an omega-3 supplement—these two cover the essentials.

Hydration Matters Too

Dehydration makes hair brittle. Aim for 2-3 litres of water daily. You’ll notice the difference in your curl texture and softness within 2 weeks. This costs nothing and is the easiest change you can make. Herbal teas count toward hydration and often contain additional benefits—green tea contains antioxidants, while chamomile can soothe inflammation.

Styling for Length in a Small Space

Limited space doesn’t mean you can’t grow healthy curls. The key is choosing styles that work in confined areas.

Avoiding Tension and Damage

In small bathrooms, air-drying curls takes up little space. Scrunch curls gently with a cotton t-shirt (not a towel) to remove excess water, then let them dry naturally. Add styling cream or gel before drying for definition. This takes 2-3 hours but requires zero equipment.

If you use a diffuser attachment with a hair dryer (around £15-30 for a dryer with good diffuser), keep it on low heat and low speed. High heat and speed damage curls and cause breakage, undoing your growth efforts. Many people find diffusing on low speed with medium heat works well—it cuts drying time without causing heat damage.

Plopping—wrapping wet hair in a t-shirt for 10-20 minutes—removes excess water gently while you do something else. This technique works perfectly in small spaces where blow-drying feels overwhelming. Your curls will dry slightly faster and with less frizz than pure air-drying.

Trimming: Why You Can’t Skip It

This seems counterintuitive—how do you grow curly hair if you trim it? The answer: split ends travel upward and cause more breakage above the trim point. A trim every 8-12 weeks removes damaged ends before they create further damage. Most trims remove only 1-2 centimetres, so you lose minimal length while gaining much stronger curls that grow more healthily.

Visit a stylist who specialises in curly hair (search “curly cut” in your area). A proper curly cut costs £25-50 but is worth the investment—a bad cut can damage your curls for months. Book every 10 weeks for optimal growth. If cost is a barrier, research if any local cosmetology schools offer discounted services or search for trainee stylists looking to build portfolio work.

Between professional trims, you can do very basic maintenance yourself. Use sharp hair scissors (not regular scissors) to snip a few frayed ends once monthly. This prevents split ends from traveling and keeps your curls looking neater without requiring a full trim.

Environmental Factors: Water Quality and Climate

Hard water deposits mineral buildup on curls, causing dullness and reduced growth. If your area has hard water, a chelating shampoo (around £6) used monthly removes buildup. Alternatively, a shower filter (£20-40) softens water year-round.

Humidity affects curls dramatically. High humidity causes frizz; low humidity dries curls out. In both cases, a good leave-in conditioner protects your curls. In winter, don’t expose wet curls to harsh, dry heated air—wrap hair in a towel for 30 minutes post-shower if possible.

Sustainable Curl Care: Eco-Friendly Practices

Growing curly hair doesn’t require constant product purchases and waste. Sustainable practices also save money long-term.

Buy products in larger bottles rather than travel sizes to reduce packaging waste. Many brands now offer refill stations or bulk options. SheaMoisture, for example, sells larger bottles at better value than smaller ones. A 470ml jar costs around £12 and lasts 4-5 months with weekly use.

Make simple treatments at home. A deep conditioning mask can be created from mashed avocado, a tablespoon of honey, and a tablespoon of olive oil. Apply for 20 minutes, rinse well. This costs under £2 and avoids packaging entirely. Similarly, a rinse of diluted apple cider vinegar clarifies curls without specialist products.

Avoid single-use plastic when possible. Solid conditioner bars last as long as 2-3 bottles of liquid conditioner and use minimal packaging. They cost around £10-15 but provide better value and are lighter for travel if you live in a small apartment. Bar conditioners also travel through airport security without the liquid restrictions.

Tracking Your Progress: Measuring Real Growth

Curls compress, so visual length changes are misleading. Instead, measure growth accurately by taking a photo monthly with your hair stretched. Mark your starting point with a thin clip or coloured thread tied around a strand. Measure the distance monthly—you should see growth of 1-1.5 centimetres per month if you’re doing everything right.

Keep a simple record: date, length, breakage level (none, minimal, moderate, significant), and any changes you made that month. After 6 months, you’ll see which strategies actually work for your unique curls. This data prevents you from wasting money on products that don’t help your specific hair.

Frequently Asked Questions About Growing Curly Hair

How often should I wash curly hair while growing it?

Once every 7-10 days is ideal. Frequent washing strips moisture and causes breakage. Between washes, rinse with water only or use a lightweight co-wash (conditioner wash) product around £5-8 to refresh curls without stripping. If your scalp feels grimy by day 5, try co-washing on day 5 and a full shampoo on day 10.

Can vitamins or supplements actually help hair grow faster?

Deficiencies slow growth; supplementing deficiencies restores normal growth. A £7 monthly multivitamin addresses most gaps. Biotin, iron, and zinc supplements show modest benefits for some people but aren’t a substitute for proper diet and hair care practices. Results take 3-6 months to appear. Be consistent before deciding a supplement doesn’t work for you.

What’s the difference between a trim and a cut for curly hair?

A trim removes 1-2 centimetres to eliminate split ends. A cut reshapes the overall style and removes more length. For growing curly hair, ask your stylist for “a trim to remove damage only.” Every 10 weeks is the recommended frequency for optimal growth.

Is it true that cutting curly hair more often makes it grow faster?

No. Hair growth rate is determined by biology and nutrition, not cutting. However, regular trims (every 8-12 weeks) prevent split ends from causing further breakage, which effectively makes your curls longer and healthier over time. You’re not speeding growth—you’re preventing loss.

Can I grow curly hair without using any special products?

Technically yes, but you’ll progress slowly. Your curls need hydration; without conditioner, they’ll be dry and break frequently. At minimum, invest in one good sulfate-free conditioner (£6-12) and one leave-in treatment (£8). These two products form the foundation for growing curly hair, and you’ll see results within 8 weeks.

Next Steps: Start with the moisture foundation. Choose one deep conditioner, one leave-in conditioner, and a silk pillowcase or bonnet. Use them consistently for 4 weeks, then add the scalp care routine. Small, sustainable changes compound into visible growth over 6 months. Your curls are waiting to reach their full potential—give them what they need.